Here is a forum for everything between the guitar (here) and the amp (there). If you want to know about cables, effects pedals, multieffects, noisegates, line drivers, phasers, distortion post your questions in here.

'magical' as in i've never heard of it. maybe it'd be an expression pedal... no idea..

what i want is one where i can, while playing guitar, fade in/out any vst effect.. like distortion for example.. untouched the sound would be clean, and while i push the pedal up the distortion would come in.... knowwhatimean?

do you mean like a hardware multi-effects unit with an expression pedal, where you choose the effect parameter that the pedal controls, but rather than a multi-effects unit, you want it to happen in software?